High-compatibility hemostasis valve

Abstract

The utility model discloses a high-compatibility hemostasis valve which comprises a first hemostasis valve body and a second hemostasis valve body which are stacked with each other. A notch is formed in the middle of the first hemostasis valve body; the second hemostasis valve body is of a hollow structure with the two ends open, a plurality of protruding rings are arranged in the second hemostasis valve body in the axial direction of the second hemostasis valve body, and the inner diameters of the protruding rings are different; wherein a dilator penetrates through the interior of the first hemostasis valve body and the interior of the second hemostasis valve body, and the inner wall of the notch and the inner walls of the at least two convex rings are in sealing fit with the dilator. The device is compatible with dilators with different sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a highly compatible hemostatic valve. Background Art

[0002] In medical practice, the diameter of vascular sheaths varies according to different surgical requirements and treatment sites, which requires hemostatic valves to be compatible with vascular sheaths of various diameters to ensure effective hemostasis in various surgical scenarios. However, existing hemostatic valves often have adaptability issues and cannot adapt to vascular sheaths of different diameters, which greatly limits their breadth and convenience in practical applications.

[0003] On the one hand, traditional hemostatic valve designs usually adopt a hemostatic structure of fixed size, which means that it can only adapt to a specific range of vascular sheath diameters; when the vascular sheath diameter exceeds this range, the hemostatic effect of the hemostatic valve will be greatly reduced or even unable to play a hemostatic role, which not only affects the smooth progress of the operation, but may also increase the patient's surgical risk.

[0004] On the other hand, with the continuous advancement of medical technology and the innovation of surgical methods, the requirements for vascular sheath hemostatic valves are also increasing. Highly compatible hemostatic valves can reduce surgical costs and improve surgical efficiency. Therefore, developing a hemostatic valve with high compatibility of various diameter specifications has become a technical problem that needs to be solved in the medical field. Summary of the invention

[0005] In view of the above problems existing in the existing hemostatic valves, the present invention aims to provide a highly compatible hemostatic valve that is compatible with dilators of different sizes.

[0006] The specific technical solutions are as follows:

[0007] A highly compatible hemostatic valve comprises a first hemostatic valve body and a second hemostatic valve body stacked on each other;

[0008] The middle portion of the first hemostatic valve body has a cutout;

[0009] The second hemostatic valve body is a hollow structure with two ends open, and a plurality of convex rings are arranged in the second hemostatic valve body along its axial direction, and the inner diameters of the plurality of convex rings are different;

[0010] The inside of the first hemostatic valve body and the inside of the second hemostatic valve body are for the expander to pass through, and the inner wall of the incision and the inner walls of at least two of the convex rings are in sealing cooperation with the expander.

[0011] In the above-mentioned highly compatible hemostatic valve, the inner diameters of the plurality of protruding rings increase or decrease gradually along the axial direction of the second hemostatic valve body.

[0012] In the above-mentioned highly compatible hemostatic valve, the second hemostatic valve body is located at the end of the convex ring with the smallest inner diameter and abuts against the first hemostatic valve body.

[0013] In the above-mentioned highly compatible hemostatic valve, an annular groove is formed between two adjacent convex rings.

[0014] In the above-mentioned highly compatible hemostatic valve, the thicknesses of several of the convex rings are equal.

[0015] In the above-mentioned highly compatible hemostatic valve, the outer diameter of the first hemostatic valve body is equal to the outer diameter of the second hemostatic valve body.

[0016] The above-mentioned highly compatible hemostatic valve, wherein the incision includes: a first incision and a second incision, one side of the first hemostatic valve body has the first incision that is not penetrated, the other side of the first hemostatic valve body has the second incision that is not penetrated, the first incision and the second incision intersect along the axial projection of the first hemostatic valve body, and the intersecting parts overlap in the axial direction of the first hemostatic valve body to form a channel.

[0017] The highly compatible hemostatic valve mentioned above further comprises: a shell, wherein the shell has a containing space, and the first hemostatic valve body and the second hemostatic valve body are confined in the containing space.

[0018] The above-mentioned highly compatible hemostatic valve, wherein the shell includes a first shell and a second shell that are detachably connected, the accommodating space is formed between the first shell and the second shell, the first shell has a first step, the second shell has a second step, the stacked first hemostatic valve body is limitedly matched with the first step, and the stacked second hemostatic valve body is limitedly matched with the second step.

[0019] In the above-mentioned highly compatible hemostatic valve, the first shell is snap-connected with the second shell.

[0020] Compared with the prior art, the above technical solution has the following positive effects:

[0021] The utility model allows the expander to penetrate the incision of the first hemostatic valve body to achieve a first layer of sealing, and the expander penetrates the inside of the second hemostatic valve body. At least two convex rings cooperate with the expander seal to achieve a second layer of sealing. The utility model is compatible with expanders of different sizes and can also ensure that the resistance between expanders of different sizes is consistent when pushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural diagram of a first hemostatic valve body and a second hemostatic valve body stacked in a highly compatible hemostatic valve of the utility model;

[0023] Figure 2It is a schematic structural diagram of a first hemostatic valve body and a second hemostatic valve body stacked in a highly compatible hemostatic valve of the utility model;

[0024] Figure 3 It is a schematic structural diagram of a first hemostatic valve body and a second hemostatic valve body stacked in a highly compatible hemostatic valve of the utility model;

[0025] Figure 4 This is a cross-sectional view of the overall structure of a highly compatible hemostatic valve of the utility model;

[0026] Figure 5 This is a schematic diagram of the overall structure of a highly compatible hemostatic valve of the utility model;

[0027] Figure 6 This is a structural schematic diagram of a dilator used in a highly compatible hemostatic valve of the utility model;

[0028] Figure 7 This is a structural schematic diagram of a dilator used in a highly compatible hemostatic valve of the utility model;

[0029] Figure 8 This is a schematic structural diagram of a first hemostatic valve body of a highly compatible hemostatic valve of the utility model;

[0030] In the accompanying drawings: 1. first hemostatic valve body; 2. second hemostatic valve body; 3. incision; 4. convex ring; 5. expander; 6. annular groove; 7. shell; 8. first shell; 9. second shell; 10. accommodating space; 11. first step; 12. second step; 13. flange; 14. recessed edge; 15. first channel; 16. second channel; 17. third channel; 18. mounting hole; 19. first incision; 20. second incision. DETAILED DESCRIPTION

[0031] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0032] like Figures 1 to 8 As shown, a highly compatible hemostatic valve according to a preferred embodiment is shown, comprising a first hemostatic valve body 1 and a second hemostatic valve body 2 stacked on each other.

[0033] Further, as a preferred embodiment, a cutout 3 is provided in the middle of the first hemostatic valve body 1 .

[0034] Further, as a preferred embodiment, the second hemostatic valve body 2 is a hollow structure with two ends open, and a plurality of convex rings 4 are provided in the second hemostatic valve body 2 along its axial direction, and the inner diameters of the plurality of convex rings 4 are different.

[0035] Further, as a preferred embodiment, the inside of the first hemostatic valve body 1 and the inside of the second hemostatic valve body 2 allow the dilator 5 to pass through, and the inner wall of the incision 3 and the inner walls of at least two convex rings 4 are sealed with the dilator 5 .

[0036] In the utility model, the expander 5 passes through the incision 3 of the first hemostatic valve body 1 to achieve a first layer of sealing, and the expander 5 passes through the interior of the second hemostatic valve body 2. At least two convex rings 4 are sealed with the expander 5 to achieve a second layer of sealing. The expander 5 can be compatible with expanders 5 of different sizes, and at the same time, the resistance between expanders of different sizes when pushed can be consistent.

[0037] Preferably, the incision 3 includes: a first incision 19 and a second incision 20, one side of the first hemostatic valve body 1 has a non-through first incision 19, and the other side of the first hemostatic valve body 1 has a non-through second incision 20, the first incision 19 and the second incision 20 intersect along the axial projection of the first hemostatic valve body 1, and the intersecting parts overlap in the axial direction of the first hemostatic valve body 1 to form a channel, and the channel is for a dilator or other diagnostic and treatment instruments to pass through.

[0038] Preferably, the intersection angle is 90°.

[0039] Preferably, since the first incision 19 and the second incision 20 do not penetrate, the deformation of the channel is more restricted, the space for inserting the dilator or other diagnostic and therapeutic equipment into the channel is smaller, the channel fits more closely to the periphery of the dilator or other diagnostic and therapeutic equipment, has a stronger wrapping property, and better prevents blood loss.

[0040] Preferably, the depth of the first incision 19 is equal to the depth of the second incision 20 .

[0041] Preferably, the depth of the first incision 19 is less than the thickness of the first hemostatic valve body 1 , and the depth of the first incision 19 is greater than half of the thickness of the first hemostatic valve body 1 .

[0042] Preferably, the first hemostatic valve body 1 is made of silicone material with low elastic modulus and high tear resistance.

[0043] Preferably, the second hemostatic valve body 2 is made of a silicone material with low elastic modulus and low tear resistance.

[0044] Further, as a preferred embodiment, the inner diameters of the plurality of protruding rings 4 increase or decrease gradually along the axial direction of the second hemostatic valve body 2 .

[0045] Further, as a preferred embodiment, the second hemostatic valve body 2 is located at the end of the convex ring 4 with the smallest inner diameter and abuts against the first hemostatic valve body 1 .

[0046] Preferably, holes are formed in the convex ring 4, a plurality of holes are coaxially arranged, and the expander passes through the plurality of holes.

[0047] When the thin dilator 5 is inserted into the second hemostatic valve body 2, the large hole does not contact the dilator 5, and the small hole contacts the dilator 5 to achieve a sealing effect; when the thick dilator is inserted into the second hemostatic valve body 2, the small hole is torn by the dilator. When dilators 5 of different sizes are inserted into the second hemostatic valve body 2, at least two layers of convex rings 4 are guaranteed to achieve a sealing effect, and the torn holes cannot achieve a sealing effect, while reducing the pushing resistance.

[0048] The above are only preferred embodiments of the present invention, and are not intended to limit the implementation methods and protection scope of the present invention.

[0049] The utility model also has the following implementation methods based on the above:

[0050] In further embodiments of the present invention, please continue to refer to Figures 1 to 8 As shown, an annular groove 6 is formed between two adjacent convex rings 4 .

[0051] Preferably, the intervals between two adjacent convex rings 4 are equal.

[0052] In a further embodiment of the present invention, the thicknesses of the plurality of protruding rings 4 are equal.

[0053] In a further embodiment of the present invention, the outer diameter of the first hemostatic valve body 1 is equal to the outer diameter of the second hemostatic valve body 2 .

[0054] In a further embodiment of the present invention, the highly compatible hemostatic valve further includes: a housing 7, wherein the housing 7 has an accommodating space 10, and the first hemostatic valve body 1 and the second hemostatic valve body 2 are confined in the accommodating space.

[0055] In a further embodiment of the utility model, the shell 7 includes a first shell 8 and a second shell 9 that are detachably connected, and an accommodating space 10 is formed between the first shell 8 and the second shell 9. The first shell 8 has a first step 11, and the second shell 9 has a second step 12. The first hemostatic valve body 1 is limitedly matched with the first step 11, and the second hemostatic valve body 2 is limitedly matched with the second step 12.

[0056] In a further embodiment of the present invention, the first shell 11 is snap-connected with the second shell 12 .

[0057] Preferably, the inner wall of the second shell 12 has a flange 13 , and the outer wall of the first shell 11 has a recessed edge 14 , and the flange 13 and the recessed edge 14 are snap-fitted.

[0058] Preferably, the first shell 8 has a first channel 15 communicating with the accommodating space 10 , the second shell 9 has a second channel 16 communicating with the accommodating space 10 , and the side wall of the first shell 8 has a third channel 17 communicating with the first channel 15 .

[0059] Preferably, the first channel 15 and the second channel 16 are coaxially arranged, and the central axis of the first channel 15 is perpendicular to the central axis of the third channel 17 .

[0060] Preferably, the first shell 8 has a mounting hole 18 .

[0061] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A highly compatible hemostatic valve, characterized in that: It comprises a first hemostatic valve body and a second hemostatic valve body stacked on each other; The middle portion of the first hemostatic valve body has a cutout; The second hemostatic valve body is a hollow structure with two ends open, and a plurality of convex rings are arranged in the second hemostatic valve body along its axial direction, and the inner diameters of the plurality of convex rings are different; The inside of the first hemostatic valve body and the inside of the second hemostatic valve body are for the expander to pass through, and the inner wall of the incision and the inner walls of at least two of the convex rings are in sealing cooperation with the expander.

2. The highly compatible hemostatic valve according to claim 1, characterized in that: The inner diameters of the plurality of protruding rings increase or decrease gradually along the axial direction of the second hemostatic valve body.

3. The highly compatible hemostatic valve according to claim 2, characterized in that: The second hemostatic valve body is located at the end of the convex ring with the smallest inner diameter and abuts against the first hemostatic valve body.

4. The highly compatible hemostatic valve according to claim 1, characterized in that: An annular groove is formed between two adjacent convex rings.

5. The highly compatible hemostatic valve according to claim 1, characterized in that: The thicknesses of the plurality of convex rings are equal.

6. The highly compatible hemostatic valve according to claim 1, characterized in that: An outer diameter of the first hemostatic valve body is equal to an outer diameter of the second hemostatic valve body.

7. The highly compatible hemostatic valve according to claim 1, characterized in that: The incision includes: a first incision and a second incision, one side of the first hemostatic valve body has the first incision that is not through-through, the other side of the first hemostatic valve body has the second incision that is not through-through, the first incision and the second incision intersect along the axial projection of the first hemostatic valve body, and the intersecting parts overlap in the axial direction of the first hemostatic valve body to form a channel.

8. The highly compatible hemostatic valve according to claim 6, characterized in that: Also includes: The housing has a containing space therein, and the first hemostatic valve body and the second hemostatic valve body are confined in the containing space.

9. The highly compatible hemostatic valve according to claim 8, characterized in that: The shell includes a first shell and a second shell that are detachably connected, the accommodating space is formed between the first shell and the second shell, the first shell has a first step, the second shell has a second step, the first hemostatic valve body is limitedly matched with the first step, and the second hemostatic valve body is limitedly matched with the second step.

10. The highly compatible hemostatic valve according to claim 9, characterized in that: The first shell is snap-connected to the second shell.

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